A schematic diagram (board NM-F861). Shared as “NM-F861 colombia-tech-schematic.pdf” — a .pdf file, 2.06 MB.
The button opens the matching file on RM Schematics, or a source page if it is not catalogued there yet. The original attachment is from @Satale_bios_esquemas_Laptop. Enginerys does not host this file.
How to open a .pdf file
The standard format for schematics, block diagrams, power-sequence charts and service manuals.